Attachment fob loom shuttles



(No Model.)

H. BAUMANN. FLOAT DETECTING ATTACHMENT FOR LOOM SHUTTLES. No. 449,194.

Patented Mar. 31, 1891.

llnrrnn States Patent @rrrcnl,

HERMANN BAUMANN, OF ADAMS, MASSAGE USETTS, ASSIGNOR OF ONE-HALF TO ROBERT N. RICHMOND, OF SAME PLACE.

FLOAT-DETECTING ATTACHMENT FOR LOOM=SHUTTLES.

SPECIFICATION forming part of Letters Patent No. 449,194, dated March 31, 1891.

Application filed April 23, 1890. Serial No. 349,075. (No model.)

To all whom, it may concern: a part of the shuttle as being broken away. Be it known that I, HERMANN BAUMANN, a Fig. 3 represents a crossse tion on the line X citizen of the United States, and a resident of X shown in Fig. 2. Fig. 41 represents a de- Adams, in the county of Berkshire and State tail perspective view of my improved loom- 5 of Massachusetts, have invented new and useshuttle attachment,showing the gate or fillful Improvements in Float-DetectingAttaching-thread breaker as released. Fig. 5 repments for Loom-Shuttles, of which the followresentsa detail side elevat on of the frame ing, taken in connection with the accompanyor case for the attachment. Fig. (3 represents ing drawings, is a specification. a detail side elevation of the lever by which 10 This invention relates to improvements in the filling-thread breaker is held in its norloom-shuttle attachments for preventing mismal position. Fig. 7 represents a detailside weaving caused by the breaking of one or viewof the gate or filling-thread breaker;and more of the warp-threads or by threads or Fig. 8 represents on a reduced scale the posiother articles being thrown on or accidenttion of the shuttle relative to the warp-threads, 5 ally intermixed with the warps of a loom at woven cloth, reed, and harnesses in a loom.

any place between the woven cloth and the Similar letters refer to similar parts wherharness during the process of weaving cloth ever they occur on the different parts of the of any kind. Such break of the warp thread drawings.

or threads or accidental interlnixture with arepresents theloonrshuttle body as usual, 20 articles of any kind causes entanglement and on which Z) is the pivoted cop-spindle, c the tightening of the said warp and prevents a cop, and c the lilling-thread,which in operafree passage of the loom-shuttle. tion will pass from the cop through the shut To prevent misweaving, as above stated, I tile-eye a in the ordinary manner. provide a loom-shuttle with a device which Theimproved attachmentconsistsofaframe 5 is automatically actuated by the tightening D, preferably made of sheet metal and secured of the warp-threads, causing aspring-pressed in a suitable manner on the interior of the lever arranged on the under side of the shut shuttle, as shown. Theframe D is preferably tle to be pressed upward, causing a springprovided with inclosing ribs or edges dd d, pressed gate, lever, or filling-thread breaker which are preferably made in one piece with 3 to be released and forced by the influence of the main portion D. I) is a spring for actuits spring against the cop-spindle, by which a-ting the filling-thread breaker, which spring the filling-thread is broken at the same time is preferably made in one piece with the case as the said gate or lever is forced against the or frame D, as shown in Fig. 5. D D are P, p r ears on the plate or frame D, to which is piv- 5 35 In connection with such improved loomoted the gate orfilling-thread breaker E, prefshuttle attachment I use any of the wellerably provided with a forked, serrated, or known automatic stop-motion devices for corrugated end E, which is automatically automaticallystopping the loom by the break forced against the cop-spindle or bobbin as ing of the filling-thread to enable the opersoon as it is released. c is a locking projecoo 4 ator to remedy the entanglementor breaking tion on the gate or filling-thread breaker E. g

of the warp-threads before any inisweaving The frameD has a side projection on arm occurs. Such automatic stop-motion,notform- D", preferably made in one piece with it, to ing any part of my present invention, is not which is pivoted atfthe gate-releasing lever represented in the drawings. or arm F, which is held in its normal lower 45 My improved looin-shuttle attachment is locked position relative to the gate E by the constructed as follows, reference being had influence of a suitable spring F, as shown. to the accompanying drawings, wherein- The lever F is provided with a hooked pro- Figure 1 represents a top view of a loomjection' F, adapted to engage with the gate shuttle provided with my improved attachprojection e for the purpose of holding the 5 ment, showing parts in section. Fig. 2 repgateE in its normal position during the reguresents a side elevation of the same, showing lar process of weaving the cloth. F is a Stop projection on said lever F, which is adapted normally to rest on a lip or projection '1) on the frame D for the purpose of preventing said lever from dropping down below the under side of the loom-shuttle. The lever F has on its under side near its free end a camshaped projection F extending to near the under side of the loon'i-shuttle, but not below the latter, and where such project ion is located I make a cut-away portion a" on the under side or edge of the shuttle for the purpose of guiding the entangled or tightened warpthread to and against such projection F on the lever F, as shown in Fig. 2.

In Fig.8, G represents the woven cloth; G and G, the warp-threads during the ordinary course of weaving; g and g, the entangled upper and lower warp-threads; 72, the reed,

' and 2' i the harnesses.

The operation of the device is as follows: During the ordinary and regular weaving process the gate or filling-thread breaker E is held by the spring-pressed lever F in its normal position within the frame D d. If from any cause the warp-threads become twisted or entangled, as shown at g g" in Fig. 8, the lower thread g" will be pressed against the lower edge of the shuttle-bod y a, and as the latter advances the tightened or entangled warp will be -guided into the cut-away portion a on the under side of the-shuttle-body and against the under side of the yielding lever F, causingthe latter to be swung upward sufficiently to disengage itself from the gate or filling-thread breaker E,which being liberated is instantly swung outward against the copspindle or bobbin 1), Fig. l, by the influence of the spring D, by which action theiree delivery of the filling-thread from the cop or bobbin is prevented, causing such thread to break. The breaking of the filling-thread as hereinabove mentioned, thus preventing misweaving. After the loom has been stopped and the en tangled warp-threads adjusted the gate or harlfl is swung back to its normal position and locked by the hooked projection F of the lever F, the filling-thread is tied, and the loom set in operation, and so on.

Heretofore in devices of this kind the gatereleasiug lever or projection has been arranged at the upper edge ofthe shuttle; but this is objectionable, for the reason that such upwardly-projecting releasing-lever is liable to be tripped by slack threads in the warp, causing unnecessary breakage of the fillingthread. Such objection is entirely overcome by locating said releasing lever or projection at the under side of the shuttle, as shown in Fig. 1.

In practice I have found that if the warpthread is broken or entangled the fillingthread-breaking device is more quickly actuated for breaking the filling-thread and stopping the loom when the release-lever is arranged on the under side of the shuttle, as compared with devices having such release-lever arranged at the upper edge of the shuttle.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent and claim- The combination of the shuttle-body and its bobbin or cop-spindle, the case or frame D, secured to the shuttle-body and having a spring D, the filling-thread breaker E, pivoted to said frame and having a lock projection 6, and a spring-pressed gate holding and releasing lever F. having a hook F" for retaining the gate E in its normal position and having a stop projection F adapted to rest normally against a projection D' on the frame D, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 18th day of April, A. D. 1890.

HERMANN BAUMANN.

Witnesses:

. P. I. BUTTON, R. N. RICHMOND. 

